ASoC: wm8741: check for error returns from wm8741_set_pdata()

Static checkers complain that "ret" is always zero so the conditions are
never true.

The intention here was clearly to check for errors from
wm8741_set_pdata().  Although, since wm8741_set_pdata() never returns
errors, it doesn't affect runtime.

Fixes: c354b54cfdf6 ('ASoC: wm8741: Add differential mono mode support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm8741.c

@@ -613,7 +613,7 @@ static int wm8741_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	wm8741_set_pdata(&i2c->dev, wm8741);
+	ret = wm8741_set_pdata(&i2c->dev, wm8741);
 	if (ret != 0) {
 		dev_err(&i2c->dev, "Failed to set pdata: %d\n", ret);
 		return ret;
@@ -679,7 +679,7 @@ static int wm8741_spi_probe(struct spi_device *spi)
 		return ret;
 	}
 
-	wm8741_set_pdata(&spi->dev, wm8741);
+	ret = wm8741_set_pdata(&spi->dev, wm8741);
 	if (ret != 0) {
 		dev_err(&spi->dev, "Failed to set pdata: %d\n", ret);
 		return ret;